Monday, September 17, 2012

Major Storm System to Batter Eastern U.S. Through Wednesday...

The same storm system that brought widespread, beneficial rain to much of Texas over the weekend is just getting started.  Above is a recent water vapor satellite image of the system, with middle and upper level wind flow overlaid on the same image.

The system will produce widespread, heavy rainfall across a good portion of the Eastern U.S. over the next 2 days.  The latest precipitation forecast from the HPC is shown below, valid 7am today through 7am Wednesday (CDT):

While the rains will be helpful to some, they will be hurtful to others, causing some major flooding problems in many instances.  Flood and/or Flash Flood Watches are already in effect from West Virginia into portions of Kentucky, Tennessee and North Carolina.  

Severe thunderstorms will also be a concern, mainly on Tuesday.  Below is the latest severe weather outlook from the Storm Prediction Center (SPC) in Norman, OK.  Severe storms are forecast anywhere within the brown shaded area on the image, with an enhanced threat in the yellow and especially the red shaded areas:

Large hail, damaging winds and a few tornadoes are possible across this area on Tuesday afternoon and evening.  If you live in these areas, please be alert and listen for the latest weather information and possible warnings on Tuesday.  Make sure to have a sheltering location picked out ahead of time, whether at home, work or school, that way you can move there quickly if a threat develops.

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